- Australian authorities Friday issued a shipping alert over a gigantic iceberg that is gradually approaching the country's southwest coast.
The Bureau of Meteorology said the once-in-a-century cliff of ice, which dislodged from Antarctica about a deca

The melting has been recorded since 1979; scientists put the annual net loss of ice and water from the ice sheet at 300-400 gigatonnes (equivalent to a billion elephants being dropped in the ocean), which could hasten a catastrophic sea level rise.